let foods = {
    apples: 25,
    oranges: 32,
    plums: 28,
    bananas: 13,
    grapes: 35,
    strawberries: 27
};

// 请把你的代码写在这条注释以下
delete foods.oranges;
delete foods.plums;
delete foods.strawberries;
// 请把你的代码写在这条注释以上

console.log(foods);